mb/prodrive/hermes: Fix PCIe ClkSrc configuration
Correct the PCIe clock source configuration as per the schematics.
Apparently, FSP does not turn off unused PCIe clock sources when using
SPS (Server Platform Services) firmware, but it does when using CSME
firmware.
TEST=BMC and Ethernet NICs get detected when using CSME firmware.
Change-Id: Id25a34816f512510640db95251a7a792c1eebe62
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58065
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/mainboard/prodrive/hermes/devicetree.cb b/src/mainboard/prodrive/hermes/devicetree.cb
index 6965821..cd99839 100644
--- a/src/mainboard/prodrive/hermes/devicetree.cb
+++ b/src/mainboard/prodrive/hermes/devicetree.cb
@@ -27,24 +27,22 @@
register "PchHdaDspEnable" = "0"
register "PchHdaAudioLinkHda" = "1"
- # Controls the CLKREQ, not the output directly.
- # Depends on the CLKREQ to CLK gen mapping below
- register "PcieClkSrcUsage[0]" = "PCIE_CLK_FREE" # BMC, PCIe Slot1, Slot2, Slot4, Slot6
- register "PcieClkSrcUsage[1]" = "PCIE_CLK_FREE" # PHY3
- register "PcieClkSrcUsage[2]" = "PCIE_CLK_NOTUSED"
- register "PcieClkSrcUsage[3]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcUsage[0]" = "PCIE_CLK_FREE" # PCIe Slot1
+ register "PcieClkSrcUsage[1]" = "PCIE_CLK_FREE" # PCIe Slot2
+ register "PcieClkSrcUsage[2]" = "PCIE_CLK_FREE" # PCIe Slot4
+ register "PcieClkSrcUsage[3]" = "PCIE_CLK_FREE" # PCIe Slot6
register "PcieClkSrcUsage[4]" = "PCIE_CLK_FREE" # RP9 M2 Slot M x4
register "PcieClkSrcUsage[5]" = "PCIE_CLK_FREE" # RP16 M2 Slot E x1
- register "PcieClkSrcUsage[6]" = "PCIE_CLK_NOTUSED"
- register "PcieClkSrcUsage[7]" = "PCIE_CLK_NOTUSED"
- register "PcieClkSrcUsage[8]" = "PCIE_CLK_NOTUSED"
- register "PcieClkSrcUsage[9]" = "PCIE_CLK_NOTUSED"
- register "PcieClkSrcUsage[10]" = "PCIE_CLK_NOTUSED"
- register "PcieClkSrcUsage[11]" = "PCIE_CLK_NOTUSED"
- register "PcieClkSrcUsage[12]" = "PCIE_CLK_NOTUSED"
- register "PcieClkSrcUsage[13]" = "PCIE_CLK_FREE" # PHY 0, PHY 1, PHY 2, PHY 4
- register "PcieClkSrcUsage[14]" = "PCIE_CLK_FREE" # PB
- register "PcieClkSrcUsage[15]" = "PCIE_CLK_FREE" # PCIe Slot3
+ register "PcieClkSrcUsage[6]" = "PCIE_CLK_FREE" # BMC
+ register "PcieClkSrcUsage[7]" = "PCIE_CLK_FREE" # PHY 3
+ register "PcieClkSrcUsage[8]" = "PCIE_CLK_FREE" # PCIe Slot3
+ register "PcieClkSrcUsage[9]" = "PCIE_CLK_FREE" # PHY 4
+ register "PcieClkSrcUsage[10]" = "PCIE_CLK_FREE" # PHY 2
+ register "PcieClkSrcUsage[11]" = "PCIE_CLK_FREE" # PHY 1
+ register "PcieClkSrcUsage[12]" = "PCIE_CLK_FREE" # PHY 0
+ register "PcieClkSrcUsage[13]" = "PCIE_CLK_FREE" # PB
+ register "PcieClkSrcUsage[14]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcUsage[15]" = "PCIE_CLK_NOTUSED"
# Only map M2 CLKREQ to CLK gen
register "PcieClkSrcClkReq[4]" = "4" # M2_M_CLK_REQ_n